Combination-square.



No. 854,351. PATENTEDMAY 21, 1907.

A. W. HIGHT.

COMBINATION SQUARE. APPLICATION FILED 001219, 1905.

WITNESSES. INVENTOFL W; Albert-W ight.

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UNITED sTATEs PATENT oEEIoE.

.ALBEET w. HIGHT, or BALLARD, WASHINGTON, ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, TO THE HIGHT MANUFACTURING COMPANY, OF TOLEDO, OHIO, ACORPORATION OF OHIO.

COMBINATION-SQUARE.

' Specification of Letters Patent.

Patented May 21, 1907.

Application filed October 19, 1905. Serial No. 283,525.

To all whom it may concern:

Be it known that I, ALBERT WV. HIGHT, a citizen of the United States,and a resident of the city of Ballard, in the county of King and Stateof WVashington, have invented certain new and useful Improvements-inCombination-Squares, of which the following is a specification.

My invention relates to an improvement in squares, and particularly tothatspecies of squares commonly called try-squares.

The object of my invention is to simplify and improve such devices, bothin their manufacture and in their use.

The scope of my invention will be defined in the claims terminating thisspecification.

My invention is shown in the drawings in the form now preferred by me.

Figure 1 is a plan view of my square. Fig. 2 is a section through thebeam at the pivot for the protractor or bevel arm.

In the form of square shown in the drawings the beam is composed of twometal plates, A, B, having bearing edges formed by flanging or bendingover their edges to form flanges a, I). These plates are securedtogether at one end with the blade C, between them. The body of theseplates are therefore separated by the thickness of the blade, therebyforming a pocket which accommodates the protractor or bevel arm D.

The blade C, preferably has a scale S, marked adjacent its inner edgeand also adjacent a slot E, which extends longitudinally of the blade.This slot has one or both edges serrated, forming rows of notches e, ande, which are spaced to conform to the subdivisions of a scale. As shown,the notches in the series 0, coincide with the eighth inch divisions,while the notches in the other series are spaced half way between these,therefore coinciding with the odd sixteenths of the scale. By placing apencil point in one of the notches and sliding the square along one sideof a board, the-board may be marked with a line parallel with its edge.The notches being spaced to conform with the subdivisions of the scale,the mark may be made at the exact distance desired. The notches onopposite sides of the slot are in staggered relation, whereby sixteenthinch Theseends of these plates are shaped to circular segmentsconcentric with the pivot bolt F. One, of these segments G, is of largerradius than the other and has a scale S, marked upon it, whereby theprotractor or bevel arm may be set. The figuring of this scalepreferablyis such as to indicate the number of inches rise for one foothorizontal. It is so indicated upon the drawing, although this may bedifferent. In order to permit the use of a longer bevel arm, I preferthat this arm be provided with a pivot slot (1, so that it may beprojected and withdrawn. I/Vhen the device is in use as a try-square thearm may lie in the space between the plates forming the beam.

To clamp the bevel arm D, I mount a clamping arm H, upon the same pivotF, and carry it beyond the edge of the smaller segment I, and pass aclamping bolt J, through the outer end of the arm H, through the slot d,in the protractor or bevel arm D, and through the slot g, in the segmentG of the beam plate B. By screwing down upon the nut K, on this bolt thewhole may be clamped securely together. I preferably place a washerbetween the arm H, and the segment G. This plan of construction clampsthe bevel arm very securely as it applies the clamping pressure at aconsiderable distance from the pivot. I also provide one end of thebevel arm D, with a central notch d, in which a pencil point may beplaced to use the device as a scratch gage in many laces where it couldnot otherwise be used.

n this use the back or thin edge may be used as the bearing surface.This is very convenient about moldings, window and door casings, etc.

l WVhat I claim is: i 3 1. A square having a slot extending lengthwisethe blade, both edges of said slot being notched and the notches onopposite sides being in staggered relation.

2. A square having a slot extending lengthwise the blade, both edges ofsaid slot being notched and the notches on opposite sides being instaggered relation, and a scale adj acent said notches.

3. A try square having a slot in its beam in the same general plane asits blade, a bevel blade in said slot, a pivot connecting the beam andbevel blade and having an ad justable connection with the bevel blade,and a clam ing bolt removed from the said pivot and ad justed position.

4. A try-square comprising a beam composed of two plates having theblade between them at one end, a blade lying between the other ends ofsaid plates and constituting a bevel or protractor arm, said arm havinga longitudinal slot, and a pivot bolt passing through said slot and aclamping bolt also passing through said slot at a point removed from thepivot bolt.

5. A try-square comprising a beam composed of two separated plates, ablade secured between one end of said plates, a protractor or bevel armbetween the other ends of said plates, a pivot bolt therefor, a clampingbolt adapted to secure said bevel arm in position, and a scale upon oneof the beam plates by which to set the bevel arm.

6. A try-square comprising a beam composed of two separated plates, ablade secured between one end of said beam plates,

apted to bind the bevel blade in adthe other ends of said beam platesbeing shaped to concentric circular segments of unequal radii, aprotractor or bevel arm pivoted between said plates concentric of saidsegments, and a scale upon the segment of larger radius by which to setsaid arm.

7. A try-square comprising a beam composed of two separated plates, ablade .secured between one end of said beam plates, the other ends ofsaid beam plates being shaped to concentric circular segments of unequalradii, a protractor or bevel arm pivoted between said plates concentricof said segments, and having a longitudinal slot whereby the arm may beshifted along the pivot, and a scale upon the segment of larger radiusby which to set said arm.

8. A try-square comprising a beam composed of two plates, a bladesecured between the beam plates at one end, the other end of the beamplates being shaped to circular segments, the larger segment having acircular slot outside the smaller segment a protractor or bevel armpivoted concentric with said segments, a clamping arm carried on thesame pivot and extending beyond the segment of smaller radius, and aclamping bolt extending through the clamping arm, the slot in thesegment and the protractor or bevel arm.

In testimony whereof, I have hereunto allixed my signature this 14th dayof October 1905, in the presence of two witnesses.

ALBERT V. HIGHT.

Witnesses:

H. L. REYNOLDS, NORMAN E. SMITH.

